Rockwell Automation 294D ArmorStart LT Distributed Motor Controller DeviceNet Version - User Manual - Manual (Page 60)

60 Rockwell Automation Publication 290D-UM001A-EN-P - June 2012
Chapter 2 Installation and Wiring
to meet specific EMC standards for CE, C-Tick or FCC. Cable specifications
depend on the installation type.
Figure 29 - Unshielded Multi-Conductor Cable
Shielded Cable
Shielded cable contains all of the general benefits of multi-conductor cable
with the added benefit of a copper braided shield that can contain much
of the noise generated by a typical AC Drive. Strong consideration for shielded
cable should be given for installations with sensitive equipment such as weigh
scales, capacitive proximity switches, and other devices that may be affected
by electrical noise in the distribution system. Applications with large numbers
of drives in a similar location, imposed EMC regulations, or a high degree
of communications/networking are also good candidates for shielded cable.
An acceptable shielded cable will have 4 XLPE insulated conductors with a
100% coverage foil and an 85% coverage copper braided shield (with drain wire)
surrounded by a PVC jacket.
Figure 30 - Shielded Cable with Four Conductors
Recommended Cable Connectors/Glands
Choose cable connectors or glands that offer the best cable protection, shield
termination, and ground contact.
G R
B W
Filler PVC Outer
Sheath
Single Ground
Conductor
B R
G W
Shield
Drain Wire